Was reading an article by Lama Yeshe on pain and illness. He views pain and illness as one of the best ways of purifying Karma. I found this oddly comforting. I would go on to suggest that it is not just my own negative karma that is being cleansed through the tinnitus torment but that of this world in general. We are all intimately interconnected. Think the thought may have helped me sleep better last night.